Biography:

One of their most recent publications is Modeling of MEMS resonator piezoelectric disc by means of an equicharge current source method. Which was published in journal Ultrasonics.

More information about L. Elmaimouni research including statistics on their citations can be found on their Copernicus Academic profile page.

L. Elmaimouni's Articles: (3)

Modeling of MEMS resonator piezoelectric disc by means of an equicharge current source method

Highlights•A Legendre polynomial model has been used previously with a voltage source to model full electrode resonators.•The Legendre polynomial method with voltage source is not able to model partially electroded resonators.•A Legendre polynomial method with an equicharge source is proposed to model partially electroded resonator.

A polynomial approach to the analysis of guided waves in anisotropic cylinders of infinite length

AbstractWe present a polynomial approach for determining the guided waves in homogeneous infinitely long cylinders utilizing elastic materials of cylindrical anisotropy. The formulation is based on linear three-dimensional elasticity. The displacement components, expanded in a series of Legendre polynomials and trigonometric functions, are introduced into the equations of motion along with position-dependent elastic constants with the advantage that the solution of the wave equation is reduced to an eigenvalue problem. Normalized frequencies are calculated for cubic and orthotropic cylinders. Results are compared with those published earlier in order to check up the accuracy and range of applicability of the proposed approach. The developed software proves to be very efficient to retrieve the guided waves of any nature and the modes of all orders. Potential applications of the approach for studying radially inhomogeneous cylinders are suggested and conceptual and computational advantages are described.

Guided waves in radially graded cylinders: a polynomial approach

AbstractA numerical method for calculating guided wave propagation in an infinite cylinder composed of Functionally Graded Materials (FGM) is presented in this article. An FGM is essentially an inhomogeneous material composite, made up of two or more materials chosen to obtain desirable properties for specific applications. In this study, properties of the material like Young's modulus, Poisson's ratio and mass density, are assumed to vary in the direction of the thickness according to a known radial variation law. The proposed solution makes use of Legendre polynomials and harmonic functions to expand each mechanical displacement component. It also incorporates the stress-free boundary conditions directly into the equations of motion. Normalized frequencies of the guided acoustic modes are calculated as a function of normalized thickness. Mechanical displacements, normal stresses and power flow distributions are presented for certain specific modes. The developed software is capable of dealing efficiently and accurately with a variety of homogeneous and inhomogeneous cylinders. Advantages of the proposed method and potential applications are described.

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